Corner weatherstrip seal



FIG. 1 is a front view of a corner weatherstrip seal showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a left front perspective view thereof; and,

FIG. 6 is a front view thereof, showing additional non-claimed elements.

Indicia rendered in broken line and other broken lines shown in FIG. 6 are for illustrative purposes only and are hereby disclaimed as forming part of the claimed invention. The views of the corner weatherstrip seal not shown form no part of the claimed design. 

The ornamental design for a corner weatherstrip seal, as shown and described. 